package com.cba.core.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/**
 * 通用配置
 *
 * @author cba
 */
@Configuration
@Slf4j
public class ResourcesConfig implements WebMvcConfigurer {

    @Value("${crm.upload.local.uploadPath.private}")
    private String filePath="";

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        //允许访问静态资源：放在jar同级目录/static, /files
        String staticDir = "file:"+System.getProperties().getProperty("user.dir")+"/static/";
        staticDir = staticDir.replace("\\", "/");
        String filesDir = "file:"+System.getProperties().getProperty("user.dir")+"/files/";
        filesDir = filesDir.replace("\\", "/");
        //允许访问上传文件
        String bucket = "file:"+filePath;
        if(!bucket.endsWith("/")){
            bucket += "/";
        }
        registry.addResourceHandler("/**").addResourceLocations(staticDir, filesDir, bucket);
        log.info("addResourceLocations = {} , {} , {}", staticDir, filesDir, bucket);

        //支持swagger:knife4j
//        registry.addResourceHandler("doc.html").addResourceLocations("classpath:/META-INF/resources/");
//        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
//        log.info("addResourceLocations knife4j/doc.html");
    }
    /**
     * 跨域配置
     */
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")  // 拦截所有的请求
                .allowedOrigins("*")  // 可跨域的域名，可以为 *
                .allowCredentials(true)
                .allowedMethods("*")   // 允许跨域的方法，可以单独配置
                .allowedHeaders("*");  // 允许跨域的请求头，可以单独配置
    }


    @Bean
    public CorsFilter corsFilter() {
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowCredentials(true);
        // 设置访问源地址
        config.addAllowedOrigin("*");
        // 设置访问源请求头
        config.addAllowedHeader("*");
        // 设置访问源请求方法
        config.addAllowedMethod("*");
        // 有效期 1800秒
        config.setMaxAge(1800L);
        // 添加映射路径，拦截一切请求
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", config);
        // 返回新的CorsFilter
        return new CorsFilter(source);
    }
}
